/
_rich_text_tool_button_link.coffee
46 lines (35 loc) · 1.61 KB
/
_rich_text_tool_button_link.coffee
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class App.UiElement.richtext.additions.RichTextToolButtonLink extends App.UiElement.richtext.additions.RichTextToolButton
@pickLinkInSingleContainer: (elem, containerToLookUpTo) ->
if elem.nodeName == 'A'
elem
else if innerLink = $(elem).find('a')[0]
innerLink
else if containerToLookUpTo and closestLink = $(elem).closest('a', containerToLookUpTo)[0]
closestLink
else
null
@pickLinkAt: (elem, container, direction, boundary = null) ->
for parent in App.UiElement.richtext.buildParentsListWithSelf(elem, container)
if parent.nodeName is 'A'
return parent
for elem in App.UiElement.richtext.allDirectionalSiblings(parent, direction, boundary)
if link = @pickLinkInSingleContainer(elem)
return link
null
@pickExisting: (sel, textEditor) ->
if sel.isCollapsed and link = $(sel.anchorNode).closest('a')[0]
return link
if sel.isCollapsed
return null
range = sel.getRangeAt(0)
if range.startContainer == range.endContainer
return @pickLinkInSingleContainer(range.startContainer, textEditor)
if link = @pickLinkAt(range.startContainer, range.commonAncestorContainer, 1, range.endContainer)
return link
if startParent = App.UiElement.richtext.buildParentsList(range.startContainer, range.commonAncestorContainer).pop()
for elem in App.UiElement.richtext.allDirectionalSiblings(startParent, 1, range.endContainer)
if link = @pickLinkInSingleContainer(elem)
return link
if link = @pickLinkAt(range.endContainer, range.commonAncestorContainer, -1)
return link
return null